package org.example.springbook1.controller;

import lombok.extern.slf4j.Slf4j;
import org.example.springbook1.controller.constant.Constants;
import org.example.springbook1.model.*;
import org.example.springbook1.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpSession;
import java.util.List;

@Slf4j
@RequestMapping("/book")
@RestController
public class BookController {
    @Autowired
    private BookService bookService;

    @RequestMapping("/getBookListByPage")
    public Result getBookListByPage(PageRequest pageRequest, HttpSession session) {
        log.info("查询翻页信息,pageRequest={}", pageRequest);

        UserInfo userInfo = (UserInfo) session.getAttribute(Constants.SESSION_USER_KEY);
        if(userInfo==null || userInfo.getId()<=0  || "".equals(userInfo.getUserName())){
            return Result.unlogin();
        }

        if(pageRequest.getPageSize()<0 || pageRequest.getCurrentPage()<1){
            return Result.fail("参数校验失败");
        }
        PageResult<BookInfo> bookInfoPageResult = null;
        try{
              bookInfoPageResult = bookService.selectBookListByPage(pageRequest);
              return Result.success(bookInfoPageResult);
        }catch (Exception e){
            log.error("查询翻页信息错误，e{}",e);
            return Result.fail(e.getMessage());
        }
    }

    @RequestMapping("/addBook")
    public String addBook(BookInfo bookInfo) {
        log.info("接收到添加图书请求，bookInfo={}", bookInfo);
        if(!StringUtils.hasLength(bookInfo.getBookName())
                || !StringUtils.hasLength(bookInfo.getAuthor())
                || bookInfo.getCount() < 0
                || bookInfo.getPrice() == null
                || !StringUtils.hasLength(bookInfo.getPublish())){
            return "参数校验失败，请检查入参";
        }
        Integer result =bookService.addBook(bookInfo);

        if(result<=0){
            log.error("添加图书出错:bookInfo={}",bookInfo);
            return "添加图书出错，请联系管理人";
        }
        return "";
    }

    @RequestMapping("/queryBookById")
    public BookInfo queryBookById(Integer bookId) {

        log.info("根据ID查询图书，bookId={}", bookId);
        try {
            BookInfo bookInfo = bookService.queryBookById(bookId);
            return bookInfo;
        }catch (Exception e){
            log.error("查询图书失败，e:{}",e);
        }
        return null;
    }
    @RequestMapping("updateBook")
    public String updateBook(BookInfo bookInfo) {
        log.info("接收到更新图书的请求，bookInfo:{}", bookInfo);
        Integer result =bookService.updateBook(bookInfo);
        if(result==0){
            log.error("更新图书失败，请联系管理员");
            return "更新图书失败，请联系管理员";
        }
        return "";
    }

    @RequestMapping("/batchDelete")
    public String batchDelete(@RequestParam List<Integer> ids) {
        log.info("接收请求，批量删除图书，图书ID={}", ids);
        Integer result = bookService.batchDelete(ids);
        if(result<=0){
            log.error("批量删除失败,ids={}",ids);
            return "批量删除失败，请联系管理员";
        }
        return "";
    }

}
